磁纳米颗粒作为基因载体重编程人脂肪间充质干细胞向胰岛前体细胞分化的研究

来源 :首届全国组织修复与再生医学大会暨国际组织修复与再生医学学术研讨会 | 被引量 : 0次 | 上传用户:rogerfederersxt
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目的:观察用聚乙烯亚胺(polyethylenimine,PEI)包被的SPIO(PEI-SPIO)作为基因载体时对细胞的毒性以及将REST-siRNA、SHH-siRNA共转染hADSCs后其分化为胰岛前体细胞的能力.方法:台盼蓝染色、MTT、免疫荧光、Real-time PCR、Western-blot、普鲁士蓝染色实验结果一、hADSCs的分离和培养原代培养hADSCs 24小时后,少量细胞贴壁.传代细胞很快贴壁,细胞形态较均匀一致,呈长梭形均匀贴壁分布.二、hADSCs细胞表面抗原标志物流式细胞学鉴定流式细胞仪(Flow cytometer,FCM)检测结果显示,hADSCs不表达CD34,主要表达CD105和CD90.表明所分离的hADSCs不包含造血干细胞及成熟的造血细胞,是一群高表达间质细胞表面分子的细胞..
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